Ore-concentrating table.



PATENTBD mag-190a. i

E. DEISTER. OBRGONGBNTRATING TABLE.

' APPLICATION FILED M313 1908.

' mmrbn ATTOBNE) WITNESSES:

UNITED STAT s PATENT OFFICE.

EMIL DEISTER, OF FORT WAYNE, INDIANA, ASSlGNOR TO THE DEISTER CONCENTRATOR COMPANY, A CORPORATION OF INDIANA.

onn-eoncnn'rna'rme 15313,.

and useful Improvements in Ore-Coneentrating Tables, of which the following is a specification.

This invention relates to improvements in ore concentrating tables, and the object thereof is to provide a concentrating table which will effect efficient separation of mineral from ore-pulp and require but slight attention of the operator.

The above object is aecomplished by the construction illustrated in the accompanying drawings, m which Figure 1 IS a perspective view showing my concentratin table and the articular arrangement ofrifiles thereon; ig. 2 is a plan view showing the rhomboidal form of the table, the relation of the driving mechanism in eonne'ctiontherewith, and the arran ement of the riflies Fig. 3 is a cross section 0i Fig. 2 on the line 23-12;.

Similar numerals of reference indicate corresponding parts in each view, and referring now to the same:

1. is a concentrating table refcrably of rhomboidal form and rovide at one end with a head-board 2 ancihlon one side witha projecting breast-board 3. he concentrat-. m surface of the table is of suitable mate- :15], such as linblefim, and ranges in a ilet plane throughout, except that ortion 4 at the juncture of the mineral disc arge ed e 5 and the head-board 2, where it is slightly raised. A feed box 6 is secured to the headboard 2 and overhangs the surface of the table adjacent thereto. that the table shall have differential reciprocating movement in a line parallel with its ends, and suitable driving mechanism 7 is arranged in connection therewith to im art thereto the desired lateral motion. he table is suitably mounted by any well known means, and when in proper posit-ionfor use ranges upon a decline from its end at the head-board to its opposite or tail'mgs discharge end, and also upon lateral incline from the breast-board side to its opposite or mineral discharge side. At the lower end of the table are arranged a tailin 's launder 8 and middlings launder 9, and ong the mineral discharge side of the table, beneath the corre- Sp ecifleetion of Letters Patent. Application flied March 3, 1906. Serial No. 303,951.

It is the intention,

Patented Aug. 4, 1908.

V spending edge thereof, is arranged a mineral launder 10 to receive the discharged concentrates therefrom.

' The particular feature of this invention is 1n the character and relative arrangement of 6 riilles 11 and 12 in connection-with the tablet The riflies are all relatively parallel and are. arranged laterally, res eeting the table, and oblique to the mineral ischarge edge 5 thereof, in successive roups 13, 14, 15 and 16 re- 5 e tapers from its inner spectively. Eac rifi end at the breast-board to its outer end and the riflies of each group var directly in len th successively toward the ow end of the tab e, the respective end riflies 12 extending to the mineral discharge edge 5 thereof, the other rifiies 11' of the groups terminating at points suitably distant therefrom and affording a washing surface 17 adjacent the outer ends of the'rifiles of each group). The projeetions of the rifiles 11 at the est-board vary inversely and successivel from the upper end of the table to the tai ings discharge end thereof, and the projections of the end 'riifles 12 at the breast-board increase sucso cessively toward the latter end of the table. In the operation of this invention, the table is set in rapid differential oscillating rno tion'laterally, and ore-pulp is fed into the feed box fronrwhcnee it gravitates upon the adjacent surface of the table, and flows to ward the low end thereof. The mineral portion of the pulp becomes directed from beneath the overlying ganguc toward the washing surfaces at the hi h side of the table because of the differential motion thereof and the lateral range of the rifiles. The mineral which passes out upo'ntho washing surfaces is treated thereon to the action of dressing water suitably supplied in any well known manner, and is directed to the discharge edge, by the extendin end riflles from whence it gravitates into the mineral launder.

The gradual decrease'in the height of the riflies toward the low end of the table affords relief for the over ying ingue which aecordingly moves at a broad angle away from the high side of the table to the discharge end thereof because of its slant; and the variation in the lengths of the riflles of each grou has the effect of similarly relieving the over ying gangue at the outer margin of the body 0 gulpso that it does not crowd to the mineral iscr ar 'e edge of the table and become dis-1 charge with the mineral; the end ritflesbeing higher than the other rifiies of the correspondlng groups, and each bein also successlvely o greater hei ht from the surface of the table towardthe ow end thereof, has the 5 effect of retarding the longitudinal low of pulp, and bodies of 'water are thereby maintained which flood the respective groups of rifiles the depth of which bodies are correspondingly reater over each succeedin group toward the low end of the table, an

the settlement of fine mineral particles is facilitated thereby; and by the arran ement of the rifiles in grou s together with the extension-of the end r' as to the discharge end of the table, the heavy and coarse mineral is expelled from the table at the head portion thereof and hence does not mingle 2th and disturb the finer mineral particles which settle later on the table nearer the lower end it thereof, and thus the efficiency of the ma chine is thereby'enhanced. 1

The form and arrangement of the table proper herein set forth is similar to that shown in previous applications filed by me Feb. 19, 1906, Sr. No. 301,728 and March 1, 1 1906, Serial No. 303,585, but is distinguished therefrom particularly by the arrangement of riflles. The table in the present instance "is provided with-rrifiles arranged especially so for treating ore-pul containin finesand lime but it'may'a so be used for treating coarser grades of ore by reducing the height of the end rifiiesto correspond with the general plane of the other rifiies.

Having described my invention, what I' claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, a reciprocating table; a projecting breast-board ,40 along the rear side thereof; and a series of rifiles upon the surface of the table arranged in successive similar groups, the end riiile of each group extending to the mineral dis charge edge of the table, the other riflles of the respective groups increasing in length successively toward the corresponding end rifile thereof, all of said riflles being tapered I from their inner ends at the breast-board to their outer ends, the said end riflies increasing and the other rifiies decreasing in height successively toward the tailing discharge end of the table.

2. In a device of the class described, a re ciprocating table; a projecting breast-board along the rear side thereof; and a series of ritfles upon the table arranged in successivesimilar groups, the riflles of each grou increasing in ength successively tower the corresponding end rifile thereof, said end riiiles eing tapered at their inner ends at the breast-board toward their outer ends and projecting higher than the adjacent rifiles,

each end riflle increasing in height with the 'other end riilles successively toward the low ing grou to the discharge edge, an the rifiles w ich \intervcne between said end riflies eachcommencing its course at the breast-board and being of increasing length successively toward the end ride of the corresponding group, there being a washing sur' face at the concentrates discharge edge of the table adjacent each group of riflles, each washing surface being separated from the adjacent Washing surface byrthe corresponding end rifile.

In testimony whereof I afiix my signature,- in presence of two witnesses.

EMI-n n'Ers rER. Witnesses: Q

W. G. Bonus, M. METTLER. 

